[fedora-arm] ARMv5 and atomic operations

Andrew Haley aph at redhat.com
Mon Apr 23 15:15:05 UTC 2012


On 04/23/2012 04:06 PM, Dan HorĂ¡k wrote:
> the main problem no only in ARM land is that many software developers
> like to develop their own atomic ops implementations in their project
> instead of using some standard one eg. from GCC :-( I fight with this
> problem again and again on s390 ...

Because the GCC ones didn't used to work.  But things are getting much
better.  BTW, I still had to roll my own CompareAndSwapDouble for ARMv7:
the kernel helper wasn't there.

Andrew.



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